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    <title>find_path</title>
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    <center>Scilab function</center>
    <div align="right">Last update : September 1995</div>
    <p>
      <b>find_path</b> -  finds a path between two nodes</p>
    <h3>
      <font color="blue">Calling Sequence</font>
    </h3>
    <dl>
      <dd>
        <tt>p = find_path(i,j,g)  </tt>
      </dd>
    </dl>
    <h3>
      <font color="blue">Parameters</font>
    </h3>
    <ul>
      <li>
        <tt>
          <b>i</b>
        </tt>: integer, number of start node</li>
      <li>
        <tt>
          <b>j</b>
        </tt>: integer, number of end node</li>
      <li>
        <tt>
          <b>g</b>
        </tt>: graph list</li>
      <li>
        <tt>
          <b>p</b>
        </tt>: row vector of integer numbers of the arcs of the path if it exists</li>
    </ul>
    <h3>
      <font color="blue">Description</font>
    </h3>
    <p>
      <tt>
        <b>find_path</b>
      </tt> returns a path <tt>
        <b>p</b>
      </tt> from node number <tt>
        <b>i</b>
      </tt> to
    node number <tt>
        <b>j</b>
      </tt> if one exists, and the empty vector <tt>
        <b>[]</b>
      </tt> otherwise.</p>
    <h3>
      <font color="blue">Examples</font>
    </h3>
    <pre>

ta=[1 1 2 2 2 3 4 5 5 7 8 8 9 10 10 10 11 12 13 13 13 14 15 16 16 17 17];
he=[2 10 3 5 7 4 2 4 6 8 6 9 7 7 11 15 12 13 9 10 14 11 16 1 17 14 15];
g=make_graph('foo',1,17,ta,he);
g('node_x')=[283 163 63 57 164 164 273 271 339 384 504 513 439 623 631 757 642];
g('node_y')=[59 133 223 318 227 319 221 324 432 141 209 319 428 443 187 151 301];
show_graph(g);
p=find_path(1,14,g);
edgecolor=1*ones(ta); edgecolor(p)=11*ones(p); g('edge_color')=edgecolor;
show_graph(g); show_arcs(p);
 
  </pre>
    <h3>
      <font color="blue">See Also</font>
    </h3>
    <p>
      <a href="nodes_2_path.htm">
        <tt>
          <b>nodes_2_path</b>
        </tt>
      </a>,&nbsp;&nbsp;<a href="shortest_path.htm">
        <tt>
          <b>shortest_path</b>
        </tt>
      </a>,&nbsp;&nbsp;</p>
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